Metal-binding-strip machine.



H. P. THORNTON. METAL BINDING STRIP MACHINE.

. APPLICATION FILED MAY 24, 1909. Patented 9; 1911.

2 SHEETS-'SHEBT. 1.

H. P. THORNTON. METAL BINDING STRIP MACHINE.

I APPLIOATION FILED MAY 24, 1909. 991,564. Patented May 9, 1911.

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HENRY P. THORNTON, 0F TROPICO, CALIFORNIA.

METAL-BINDING-STRIP MACHINE.

T 0 all whom it may concern:

Be it known that I, HENRY P. THORNTON, a citizen of the United States,residing at Tropico, California, have invented a new and usefulMetal-Binding-Strip Machine, of which the following is a specification.

My invention relates to making baskets for the fruit business, my objectbeing to make the metal binding strip with the least possible amount oflabor and at a high rate of speed.

In the drawings: Figure 1 is a top plan view of a metal binding stripmachine embodying the principles of my invention. Fig. 2 is a frontelevation, as seen looking in the direction indicated by the arrow 2 inFigs. 1, 3, 4 and 6. Fig. 3 is an end elevation as seen looking in thedirection of the arrow 3 in Figs. 1, 2, 4 and 5. Fig. A is a horizontalsectional detail approximately on the line 4t in Figs. 2 and 3. Fig. 5is a vertical longitudinal section on the line 5-5 in Fig. 1. Fig. 6 isa vertical cross-section on the line 66 in Figs. 1 and 2, and on a planeparallel with Fig. 3. Fig. 7 is a fragment-a1 cross-section on anenlarged scale on the line 7 7 in Figs. 1 and 9. Fig. 8 is a fragmentalcross-section on an enlarged scale on the line 8--8 in Fig. 1. Fig. 9 isa fragmental cross-section on an enlarged scale on the line 9-9 in Figs.1, 3 and 7. Fig. 10 is a perspective of the completed metal bindingstrip.

Referring to the drawings in detail, my metal binding strip machineincludes: A, mechanism for gaging the width of the metal binding strip.B, mechanism for clamping the sheet of tin. G, mechanism for cutting themetal binding strip from the sheet. D, mechanism for folding the cutmetal binding strip. E, frame-work for mounting the parts.

The mechanism A for gaging the width of the metal binding strip is bestshown in Fig. 8. A gage-bar 11 is fixed upon the upper end of anadjusting-bar 12, said adjusting-bar being slidingly mounted in theframe and extending through an adjusting-bracket 13 fixed to the frame,and there being adjusting-nuts 14 and 15 upon the adjusting-bar one uponeach side of the adjusting-bracket, so that by manipulating theadjusting-nuts the gage-bars may be accurately located relative to thecutting-mechanism. A series of the gage-bars may be used, as shown inFigs. 1 and 4t.

Specification of Letters Patent.

Application filed May 24, 1909.

Patented May 9, 1911.

Serial No. 497,969.

The mechanism B for clamping the sheet of tin is shown in Figs. 1, 4, 6and 8. The clamping-bar 16 is fixed upon the ends of sliding-guide-bars17 carried by the reciprocating-knife-head. Adjusting-stop-bolts 18extend from the ends of the sliding-guidebars through smaller bearingsin the reciprocating-knife-head, and springs 19 operate around theadjusting-stop-bolts against the ends of the sliding-guide-bars, so thatby manipulating the stop-nuts 20 upon the adjusting-stop-bolts thenormal position of the clamping-bar may be determined and so that theclamping-bar may yield backwardly under pressure.

The mechanism C for cutting the metal binding strip from the sheet isshown in different aspects throughout the drawings. The fixed-knife 21is adjustably secured to the fixed-knife-head 22 by screws 23 extendingthrough slotted openings in the fixedknife and screw-seated in thefixed-knifehead. A guideplate 2 f extends upwardly from thefixed-knife-head, the face of the guide-plate being flush with the faceof the fixed-knife, and adjusting-screws 25 are screw-seated through theguide-plate and engage the upper side of the fixed-knife to adjust andhold the fixed-knife against the reciprocating-knife. Thereciprocatingknife 26 is adjustably mounted in a groove 26 in thereciprocating-knife-head 27, there being adjusting-screws 28 to locatethe reciprocating-knife and clamping-screws 29 to holdthereciprocating-knife, and the reciprocating-knife is set shearingrelative to the fixed-knife. Sliding-guide-blocks 30 are formed integralwith the ends of the reciprocating-knife-head 27 and suitably mounted inbearings in the frame, a pivotshaft 31 is mounted in thesliding-guideblocks 30, and adjustingly connected by pitmen 32 to thecranks of the operating crank-shaft 33, carrying the fast-pulley 34 andthe loose pulley 35.

The mechanism D for folding the cut metal binding strip is shown inFigs. 2, 4, 5, 6, 8 and 9. The lower-forming-die-head 36 hasvertical-guides 37 at its ends, said guides being adjustably mounted inthe guide-slots 38 in the sliding-guide blocks 30. Upperadjusting-plates 39 span the upper ends of the guide-slots 38 and carryadjusting-screws 4.0 engaging the vertical-guides 37, and loweradjusting-plates 41 span the lower ends of the guide-slots 38 and carryadjusting-screws 42 engaging the verticalguides 37, so that thelowerforming-die-- head may be adjusted up and down. The adjusting-bars12 are mounted in the lowerforming-die-head 36 and the adjustingbrackets13 are secured thereto. The corner of the reciprocating-knife 26 is cutaway to make the upper-forming-die 43 and the lower-forming-die 44extend upwardly from the lower-forming-diehead 36 in opposition to theupper-forming-die 43 so as to form adjustabledie-opening 45, there beinga sheet of hardened steel 46 upon the front face of thelower-forming-die 44, and the gagebars 11 operate beside this steel. Thedie-opening 45 is a segment of a circle in cross-section and dischargesdownwardly, while the knives operate horizontally. The forming-punch 47is a thin bar of hardened steel secured to the forming-punch-head 48,there being notches in the forming-punchhead to receive the gage-bars 11and the formingmnch extending beyond the edge of the forming-punch-head.A bearingblock 49 is formed integral with the forming-punch-head, and apivot 50 extends through this bearing-block, there being amnuts 51 uponthe lower end of the pivot. An eccentric-bushing 52 is mounted throughthe fiXed-knife-head 22 and the pivot 50 is screw-threaded through thiseccentric-bushing, there being a shoulder 53 upon the pivot below theeccentric-bushing and a amnut 54 above, so as to adjust and clamp thepivot. A slotted-arm 55 extends from the upper end of theeccentric-bushing and is adjustably secured to the fixed-knife-head by acap-screw 56, so that the eccentric-bushing may be rotated slightly toadjust the forming-punch 47 back and forth. A slot 57 is formed in theforming-punch-head at the opposite end from the pivot 50 and a bolt 57extends through this slot and is seated through the fiXed-knife-head 22,there being nuts 58 and 59 upon the bolt for adjustment. A bracket 60extends downwardly from the fixed-knife-head in front of theswinging-end of the forming punch-head and an adjustable-stop-screw 61is mounted in the bracket 60 to adjustably limit the forward swing ofthe formingpunch. A second bracket 62 extends downwardly from thefixed-knife-head 22, a bolt 63 is fixed in the forming-punch-head 48 andslides through the second bracket 62, nuts 64 upon the bolt 63adjustably limit the backward swing of the forming-punch, and a spring65 upon the bolt between the bracket and the forming-punch-head holdsthe forming-punch yieldingly in its normal position, which is parallelwith the rigidknife. The forming'punch should be adjusted to operate atthe center of the receiving end of the die-opening 45. As thereciprocating-knife 26 moves to cut the metal binding strip from thesheet the formingpunch presses the cut tin yieldingly against theforming-dies until the tin is completely severed, then theformingpunch-head strikes the stop-screw 61 and presses the tin into thedie-opening 45 thereby folding the tin and the folded tins pass throughthe dieopenings 45 and drop. The sheet of tin 66 is inserted downwardlyagainst the guideplate 24 and rests upon the gage-bars 11, theclamping-bar 16 presses the sheet against the fixed-knife 21 while thecutting is being done, and as the metal binding strip 67 is formed thesheet drops for a new tin. The metal binding strip may be of any desiredsize, and in shape any form of channel-bar usually ranging from asemi-circle to a sharp V in cross-section. A feed-gage 68 is adjustablysecured to the guide-plate 24.

The frame-work E for mounting the parts is shown broken or fragmentarythroughout the views. The end pieces 69 have suitable legs, carryingbearings for operating-crankshaft 33, and are recessed to formslide-ways for the sliding-guide-blocks 30, which are held in place bycaps 70, and the ends are connected by the fixed-knife-head 22. Abracket 71 is secured to one of the end-pieces and the belt-shifter 7 2is mounted upon the bracket.

I claim:

1. In a metal binding strip machine, a frame, a shearing member, fixedlyattached on said frame, a movable shearing member mounted on said frameand coiiperating with said fixed member to cut a strip from a sheet ofmaterial, a bar adjustably mounted on said movable member and forming adie opening therewith, a punch adjustably mounted on said fixed memberand cooperating with said movable member and bar to crimp the strip, andmeans for adjusting the punch transversely of the die opening.

2. In a metal binding strip machine, a frame, a shearing member movablymounted upon the frame said shearing member consisting of a part havinga cutting edge and a bar adjustably mounted on said part and forming adie opening therewith, said die opening passing from the front facethrough the shearing member to a side face; a second shearing memberfixedly attached to said frame and adjustable relative to the firstshearing member; a punch pivotally connected at one end to the secondshearing members and yieldingly connected at the other end, said punchbeing adjustable transversely of the die opening.

3. In a metal binding strip machine, a frame, a shearing member movablymounted in a frame there being an adjustable die opening passing throughthe shear member, a second shear member fixedly mounted in the frame andadjustable relative to the first shear member, a punch pivoted at oneend to the second shear member and yieldingly connected at the other endand adjustable transversely of the die opening.

4. In a metal binding strip machine, a frame a shear fixedly mounted inthe frame, a second shear movably mounted in the frame, there being adie opening through the second shear, and a punch co-acting with saiddie opening, said punch being pivotally mounted at one end andyieldingly mounted 10 at the other end so that in severing a strip oftin the punch presses yieldingly against the strip before and at thetime and progressively as it is severed from the stock.

HENRY P. THORNTON. Witnesses:

SEMER Gr. WELLS, ESTELLE M. LE SAGE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

